David has an ultrasound of his common carotid arteries, which shows that his rig

Question

David has an ultrasound of his common carotid arteries, which shows that his right common carotid artery is nearly 90 percent blocked. He wonders how the right side of his brain is getting enough blood if this artery is so occluded. What do you tell him? David has an ultrasound of his common carotid arteries, which shows that his right common carotid artery is nearly 90 percent blocked. He wonders how the right side of his brain is getting enough blood if this artery is so occluded. What do you tell him?

Explanation / Answer

The coronary artery brings blood to the heart muscle. Blockage of this vessel can cause heart failure, heart attacks, angina, and sudden death. The surgery reroutes, or "bypasses," blood around clogged arteries to improve blood flow and oxygen to the heart. If an artery is substantially blocked, circulation of blood occurs by development of collateral circulation that is circulation of blood happens through small vessels.

This is the main reason behind the David proper amount of blood receiving from his right brain in spite of blockage.

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